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cagatayyildiz

approximately-equivariant-nets's Issues

e2cnn?

Hey,

Thanks for this nice repo! It seems that e2cnn should have been included in the requirements? Can you double-check?

Cheers,
Cagatay

multiprocess error on mac

Hi,

I installed the dependencies on my mac (without cuda toolkits). Then I run into a weird execution time error. This feels like a mac-specific issue as the code runs just fine on my Linux workstation. I paste the log below - the first few lines are particularly suspicious.

python3 run_model.py --relaxed_symmetry=Rotation --hidden_dim=92 --num_layers=5 --out_length=6 --alpha=1e-5 --batch_size=16 --learning_rate=0.001 --decay_rate=0.95
0
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
number of paramters: 5.596178
0
0
0
0
0
0
0
0
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
number of paramters: 5.596178
number of paramters: 5.596178
number of paramters: 5.596178
number of paramters: 5.596178
number of paramters: 5.596178
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
number of paramters: 5.596178
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
number of paramters: 5.596178
Relaxed_Rot_SteerConvNet_bz16_pred6_lr0.001_decay0.95_hid92_layers5_alpha1e-05
number of paramters: 5.596178
Traceback (most recent call last):
Traceback (most recent call last):
  File "<string>", line 1, in <module>
Traceback (most recent call last):
  File "<string>", line 1, in <module>
Traceback (most recent call last):
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<string>", line 1, in <module>
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
Tra  File "<string>", line 1, in <module>
ceback (most recent call last):
  File "<string>", line 1, in <module>
Traceback (most recent call last):
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
  File "<string>", line 1, in <module>
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 116, in spawn_main
    exitcode = _main(fd, parent_sentinel)
    exitcode = _main(fd, parent_sentinel)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
    exitcode = _main(fd, parent_sentinel)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
    exitcode = _main(fd, parent_sentinel)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
    exitcode = _main(fd, parent_sentinel)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
    exitcode = _main(fd, parent_sentinel)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
    prepare(preparation_data)
  File "/Users/cagatay/opt/anaconda3/en    prepare(preparation_data)
vs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
    prepare(preparation_data)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
    prepare(preparation_data)
    prepare(preparation_data)
    exitcode = _main(fd, parent_sentinel)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
    prepare(preparation_data)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    prepare(preparation_data)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
    exitcode = _main(fd, parent_sentinel)
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 125, in _main
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    prepare(preparation_data)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 236, in prepare
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    _fixup_main_from_path(data['init_main_from_path'])
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 287, in _fixup_main_from_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    main_content = runpy.run_path(main_path,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 288, in run_path
    return _run_module_code(code, init_globals, run_name,
    return _run_module_code(code, init_globals, run_name,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
    return _run_module_code(code, init_globals, run_name,
    return _run_module_code(code, init_globals, run_name,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
    return _run_module_code(code, init_globals, run_name,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
    return _run_module_code(code, init_globals, run_name,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
    _run_c    _run_code(code, mod_globals, init_globals,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
    return _run_module_code(code, init_globals, run_name,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
    return _run_module_code(code, init_globals, run_name,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
ode(code, mod_globals, init_globals,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
    _run_code(code, mod_globals, init_globals,
    exec(code, run_globals)
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    _run_code(code, mod_globals, init_globals,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
    _run_code(code, mod_globals, init_globals,
    exec(code, run_globals)
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
    _run_code(code, mod_globals, init_globals,
    _run_code(code, mod_globals, init_globals,
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    exec(code, run_globals)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/runpy.py", line 87, in _run_code
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    exec(code, run_globals)
    exec(code, run_globals)
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    exec(code, run_globals)
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    exec(code, run_globals)
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
    for xx, yy in train_loader:
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
    for xx, yy in train_loader:
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 368, in __iter__
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return _MultiProcessingDataLoaderIter(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
    return _MultiProcessingDataLoaderIter(self)
    return _MultiProcessingDataLoaderIter(self)
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return _MultiProcessingDataLoaderIter(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/li    return _MultiProcessingDataLoaderIter(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
b/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
    return self._get_iterator()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 314, in _get_iterator
    return _MultiProcessingDataLoaderIter(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
    return _MultiProcessingDataLoaderIter(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    return _MultiProcessingDataLoaderIter(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 927, in __init__
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    w.start()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/process.py", line 121, in start
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    self._popen = self._Popen(self)
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    self._popen = self._Popen(self)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 224, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
    return _default_context.get_context().Process._Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  F    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    return _default_context.get_context().Process._Popen(process_obj)
    return _default_context.get_context().Process._Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
    return Popen(process_obj)
ile "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/context.py", line 284, in _Popen
    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    return Popen(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 32, in __init__
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    super().__init__(process_obj)
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    super().__init__(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_fork.py", line 19, in __init__
    self._launch(process_obj)
    self._launch(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    self._launch(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    self._launch(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    self._launch(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    self._launch(process_obj)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
    prep_data = spawn.get_preparation_data(process_obj._name)
    prep_data = spawn.get_preparation_data(process_obj._name)
    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
    self._launch(process_obj)
    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
    _check_not_importing_main()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch
    _check_not_importing_main()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    _check_not_importing_main()
    _check_not_importing_main()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    _check_not_importing_main()
    raise RuntimeError('''
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    raise RuntimeError('''
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.    raise RuntimeError('''
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and yoRuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.
    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
    raise RuntimeError('''
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.

u have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.    self._launch(process_obj)
    raise RuntimeError('''
    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/popen_spawn_posix.py", line 42, in _launch

  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name    prep_data = spawn.get_preparation_data(process_obj._name)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 154, in get_preparation_data
    _check_not_importing_main()
__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    _check_not_importing_main()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main

    _check_not_importing_main()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    raise RuntimeError('''
    raise RuntimeError('''
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if th    raise RuntimeError('''
e program
        is not going to be frozen to produce an executable.
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

        The "freeze_support()" line can be omitted if the program
        is not going to be frozen to produce an executable.
Traceback (most recent call last):
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 1011, in _try_get_data
    data = self._data_queue.get(timeout=timeout)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/queues.py", line 113, in get
    if not self._poll(timeout):
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/connection.py", line 257, in poll
    return self._poll(timeout)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/connection.py", line 424, in _poll
    r = wait([self], timeout)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/multiprocessing/connection.py", line 931, in wait
    ready = selector.select(timeout)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/selectors.py", line 416, in select
    fd_event_list = self._selector.poll(timeout)
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/_utils/signal_handling.py", line 66, in handler
    _error_if_any_worker_fails()
RuntimeError: DataLoader worker (pid 91083) exited unexpectedly with exit code 1. Details are lost due to multiprocessing. Rerunning with num_workers=0 may give better error trace.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/run_model.py", line 200, in <module>
    train_rmse.append(train_epoch(train_loader, model, optimizer, loss_fun))
  File "/Users/cagatay/Nextcloud/projects/approximately-equivariant-nets/utils.py", line 43, in train_epoch
    for xx, yy in train_loader:
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 530, in __next__
    data = self._next_data()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 1207, in _next_data
    idx, data = self._get_data()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 1173, in _get_data
    success, data = self._try_get_data()
  File "/Users/cagatay/opt/anaconda3/envs/aen/envs/aen/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 1024, in _try_get_data
    raise RuntimeError('DataLoader worker (pid(s) {}) exited unexpectedly'.format(pids_str)) from e
RuntimeError: DataLoader worker (pid(s) 91078, 91079, 91080, 91081, 91082, 91083, 91084, 91085) exited unexpectedly

data_gen.ipynb has issues

Issue 1: phiflow undefined.
You need to change import to this

from PhiFlow import *

Issue #2: NameError: name 'StaggeredGrid' is not defined
I have no idea what this is. Can you give the notebook a try? thanks

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